Abstract

A powder discharge gun (100) having a housing (101) defining a main body and a supply barrel (200) having an inlet and an outlet (104). A powder supply mechanism (108) supplies and temporarily retains powder at the barrel to allow pressurised gas to force the powder out through the outlet. The powder is dispensed through a nozzle (103) that has a length aligned substantially with the longitudinal axis of the barrel (200) with the conduit having one or more turns spaced longitudinally relative to the longitudinal axis.